NCT02787135.

Trial name or title	Efficacy and mechanisms of change of an emotion‐oriented version of cognitive‐behavioural therapy for psychosis (CBTp‐E) in reducing delusions. A randomized‐controlled treatment Study (CBTd‐E)
Methods	Allocation: randomised Blinding: single‐blind (participant) Duration: not reported Location: not reported Length of follow‐up: not reported
Participants	Diagnosis: schizophrenia, schizoaffective disorder, delusional disorder (DSM‐V) Total: N = 102 Sex: not reported Age: not reported Length of illness: not reported Inclusion criteria: not reported Exclusion criteria: not reported
Interventions	1. Emotion‐oriented cognitive behaviour therapy group 2. Treatment‐as‐usual group
Outcomes	Change in Psychotic Rating Scale (PSYRATS) delusions scale Change in Positive and Negative Syndrome Scale (PANSS) Change in Calgary Depression Rating Scale for Schizophrenia (CDSS) Change in Role Functioning Scale (RFS) Change in Peters et al. Delusions Inventory (PDI‐R) Change in Emotion‐regulation Questionnaire (ERQ) Change in Emotion regulation Inventory Change in paranoia assessed with electronical mobile assessment Change in sleep quality as assessed with an Actiwatch Change in emotion regulation quality as assessed experimentally using International Affect Picture System paradigm for the assessment of emotion regulation (IAPS) Change in heart rate variability Change in Brief Core Schema Scale (BCSS) Change in Insomnia Severity Index (ISI) Change in Self‐Compassion Scale (SCS) Change in Self‐perception of emotional competencies (SEK‐27)
Starting date	May 2016
Contact information	Stephanie Mehl, PhD Tel: +491631879762 Email: stephanie.mehl@staff.uni‐marburg.de
Notes	This study is currently recruiting participants.